My patch that moves the search boxes also now moves the "Purge History" and the "Show All / Show Failed" buttons to the top of the history list. I also now provide a zip file of the patched files in addition to the diff.

It shows it in MB and it shows it when more than 3% is missing, only then it would be a problem.
But maybe I should change it to show as soon as more than 1MB is missing.
Are you not using Abort jobs that cannot be completed? You can also use Check before download to avoid failing jobs using your data.